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Chandra Goes In And Out Of Safe Mode
Chandra Goes In And Out Of Safe Mode

NASA Chandra X-ray Observatory Update: Out Of Safe Mode “The cause of Chandra’s safe mode on October 10 has now been understood and the Operations team has successfully returned the spacecraft to its normal pointing mode. The safe mode was caused by a glitch in one of Chandra’s gyroscopes resulting in a 3-second period of bad data that in turn led the on-board computer to calculate an incorrect value for […]

  • NASA Watch
  • October 15, 2018
Exoplanet First for Chandra Telescope

NASA X-ray Telescope Observes Planet Passing in Front of its Star for the First Time, NASA “For the first time since exoplanets, or planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent star. An advantageous alignment of a planet and its parent star in the system HD 189733, which is 63 light-years from Earth, […]

  • NASA Watch
  • July 29, 2013
Space and Art

Heaven and Earth, NASA “There are patterns of beauty across our Earth and throughout the Universe.” Marc’s note: You can watch a large version on SpaceRef’s updated OnOrbit site.

  • NASA Watch
  • May 30, 2013